Question

the price of a t-shirt is $20, but you have a coupon that lowers the price by 10%. What is the price of the t-shirt after using the coupon?a.$2b.$10c.$18d.$20

Answer 1

`C\text{. }\$18`

Step-by-step explanation

To find the price of the t-shirt after using the coupon, find 10% of the price of the shirt and subtract that from the price of the shirt.

10% of the price is:

`\begin{gathered} (10)/(100)*20 \\ \\ \$2 \end{gathered}`

Now, subtract that from the price of the shirt. That is:

`\begin{gathered} \$20-\$2 \\ \\ \Rightarrow\$18 \end{gathered}`

That is the price of the shirt after the coupon is used. The answer is option C.